Answer:
I am round as an apple, deep as a cup. All the King's horses can't pull me up. What am I?
I know a word of letters three. Add two and fewer there will be. What is the word?
I may be of the eye, in order I am pie. In my center there is a star, I keep medics where they are. What am I?
What is brown and sticky?
When it comes to me, you go on red and stop on green. What am I?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.